TUCoPS :: Web :: Apps :: hack0412.htm

TUCoPS :: Web :: Apps :: hack0412.htm
MySQL: Insecure temporary file creation in mysqlhotcopy

[ GLSA 200409-02 ] MySQL: Insecure temporary file creation in mysqlhotcopy -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200409-02 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: MySQL: Insecure temporary file creation in mysqlhotcopy Date: September 01, 2004 Bugs: #60744 ID: 200409-02 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== The mysqlhotcopy utility can create temporary files with predictable paths, allowing an attacker to use a symlink to trick MySQL into overwriting important data. Background ========== MySQL is a popular open-source multi-threaded, multi-user SQL database server. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 dev-db/mysql <= 4.0.20 >= 4.0.20-r1 Description =========== Jeroen van Wolffelaar discovered that the MySQL database hot copy utility (mysqlhotcopy.sh), when using the scp method, uses temporary files with predictable names. A malicious local user with write access to the /tmp directory could create a symbolic link pointing to a file, which may then be overwritten. In cases where mysqlhotcopy is run as root, a malicious user could create a symlink to a critical file such as /etc/passwd and cause it to be overwritten. Impact ====== A local attacker could use this vulnerability to destroy other users' data or corrupt and destroy system files, possibly leading to a denial of service condition. Workaround ========== There is no known workaround at this time. Resolution ========== All MySQL users should upgrade to the latest version: # emerge sync # emerge -pv ">=dev-db/mysql-4.0.20-r1" # emerge ">=dev-db/mysql-4.0.20-r1" References ========== [ 1 ] CAN-2004-0457 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0457 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200409-02.xml Concerns? ========= Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at http://bugs.gentoo.org. License ======= Copyright 2004 Gentoo Foundation, Inc; referenced text belongs to its owner(s). The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license. http://creativecommons.org/licenses/by-sa/1.0 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (GNU/Linux) Comment: Using GnuPG with Thunderbird - http://enigmail.mozdev.org iD8DBQFBNe2/vcL1obalX08RAnCHAJ0W1NV44t2Z8xg2KZ5pA2IFP3QwCQCgk7Vm 7e5vtqbm5qpe3N3stRbPNis= =/6Kl -----END PGP SIGNATURE-----